CN105819730A - Cement paste waterproofing agent - Google Patents
Cement paste waterproofing agent Download PDFInfo
- Publication number
- CN105819730A CN105819730A CN201610219932.4A CN201610219932A CN105819730A CN 105819730 A CN105819730 A CN 105819730A CN 201610219932 A CN201610219932 A CN 201610219932A CN 105819730 A CN105819730 A CN 105819730A
- Authority
- CN
- China
- Prior art keywords
- cement
- parts
- additive
- grouting
- mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/65—Water proofers or repellants
Abstract
The invention discloses a cement paste waterproofing agent which specifically comprises the following components in part by weight: 20-40 parts of an additive, 15-40 parts of a polymer material and 20-65 parts of a mixed material, wherein the additive is a mixture of a polycarboxylate superplasticizer and a quick-setting agent; the dosage of polycarboxylate superplasticizer is 0.15%-0.3% of grouting cement; the dosage of the quick-setting agent is 0.5%-2% of grouting cement; the polycarboxylate superplasticizer and the quick-setting agent are mixed and stirred uniformly; the polymer material is polyacrylamide; the mixed material is a mixture of grade-I fly ash and silica fume or bentonite, wherein the content of fly ash is 18%-22% of grouting cement; the content of silica fume is 3%-27% of grouting cement; the content of bentonite is 1%-3% of grouting cement; the grade-I fly ash and silica fume or bentonite are mixed and stirred uniformly in proportion; when preparation, the mixed material is placed in a stirring machine and is stirred for 3-6 min; then the additive and the polymer material are added to be stirred for 30-50 min to obtain a mixture; the mixture is bagged and stored at 20-40 DEG C.
Description
Technical field
The present invention relates to building water-proof Material Field, a kind of waterproofing agent in cement mortar.
Background technology
Along with construction, the high speed development of exploitation of mineral resources, groundwater trouble becomes the difficult problem during construction, exploitation of mineral resources, and groundwater trouble problem cannot solve, and will affect being normally carried out of production.The most typically use the method for underwater grouting cement mortar carry out retaining wall, leak stopping, sealing of hole, process well thus to solve the problem such as groundwater trouble, but existing cement mortar mobility and early strength are poor, and this just have impact on the improvement of groundwater trouble.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency of prior art and provide a kind of can increase cement mortar fluidity, cement mortar early strength can be made to increase rapidly and can the cement injection waterproofing agent of normal cure sealing in water.
The technical scheme is that cement mortar waterproofing agent, its composition in parts by mass, specifically has:
Additive 20～40 parts, macromolecular material 15～40 parts, mixing material 20～65 parts.
Described additive is the mixture of polycarboxylate water-reducer, accelerator, and wherein, polycarboxylate water-reducer consumption is the 0.15%～0.3% of grouting cement, and accelerator consumption is the 0.5%～2% of grouting cement, in proportion by polycarboxylate water-reducer and accelerator mixing and stirring.
Described macromolecular material is polyacrylamide.
Described mixing material is the mixture of I level flyash and silicon ash, or I level flyash and bentonitic mixture, wherein, the volume of flyash is the 18%-22% of grouting cement, Silica fume content is the 3%-27% of grouting cement, bentonite volume is the 1%-3% of grouting cement, in proportion by grey to I level flyash and silicon or I level flyash and bentonite mixing and stirring.
During preparation, after mixing material being put in blender stirring 3～6 minutes, add additive, macromolecular material stirs 30～50 minutes, then packs, and storage temperature is-20 DEG C～-40 DEG C.
In the cement mortar waterproofing agent formula that the present invention provides, utilize additive to improve fluidity and the early strength of cement mortar, additive can strengthen Behavior of Hardened Cement Paste (Behavior of Hardened Cement Paste is the cement slurry after hardening) early stage and later strength while the initial set affecting cement mortar and final setting time, wherein the effect of polycarboxylate water-reducer is to reduce the consumption of water in cement mortar, increasing early stage and the later strength of Behavior of Hardened Cement Paste, the effect of accelerator is initial set and the final setting time reducing cement mortar；Utilizing macromolecular material to improve the anti-permeability performance of Behavior of Hardened Cement Paste, the effect of macromolecular material is to make cement slurry not disperse in water, thus improves the density of Behavior of Hardened Cement Paste；Utilizing mixing material to solve cement mortar scattering problem in water, the effect of mixing material is not shrink when cement strength is formed, and plays the effect closing water.
After the waterproofing agent provided for the present invention below is used for cement mortar, every technical performance index of cement mortar:
1, flowing degree of net paste of cement 240mm；
2, presetting period 30min；
3, final setting time 50min；
4, permeated height ratio 27%；
5, water demand ratio 68%；
6,1d compressive strength rate 620%, 3d compressive strength rate 400%, 7d compressive strength rate 210%, 28d compressive strength rate 130%；
7, total alkali content 2.7%；
8, chloride ion content 0.3%；
9, ammonia burst size 0.01%.
The cement mortar waterproofing agent using the present invention to provide carries out grouting for water plugging, the pitshaft of each hundred square metres and roadway permeable amount less than 3m/h to pitshaft and roadway.
Summed up by above index and draw, after the waterproofing agent that the present invention provides is applied to cement mortar, in the case of ensureing the normal performance of cement mortar, improves the fluidity of cement mortar, decrease the consumption of water；Decrease initial set and the final setting time of cement mortar, improve the comprcssive strength of cement mortar and the impermeability of Behavior of Hardened Cement Paste and degree of compaction simultaneously.
The present invention compared with prior art has a characteristic that
1, improve the fluidity of cement mortar, reduce water consumption；
2, the early strength of cement mortar is improved；
3, impermeability and the degree of compaction of Behavior of Hardened Cement Paste are improved；
4, can be applicable to the foundation excavation of sand ground and river shoal etc.；Can be applicable to the pre-pouring grout excavation of various pit shaft, save the great expense of freezing, with a wide range of applications.
Below in conjunction with detailed description of the invention, the invention will be further described.
Detailed description of the invention
Embodiment one, cement mortar waterproofing agent, its composition in parts by mass, specifically has: additive 20 parts, macromolecular material 15 parts, mixing material 20 parts.
Described additive is the mixture of polycarboxylate water-reducer and accelerator, and wherein, polycarboxylate water-reducer consumption is the 0.15%～0.3% of grouting cement, and accelerator consumption is the 0.5%～2% of grouting cement, in proportion by polycarboxylate water-reducer and accelerator mixing and stirring.
Described macromolecular material is polyacrylamide.
Described mixing material is the mixture of I level flyash and silicon ash, and wherein, the volume of flyash is the 18%-of grouting cement
22%, Silica fume content is the 3%-27% of grouting cement, in proportion by I level flyash and silicon ash mixing and stirring.
During preparation, after mixing material being put in blender stirring 3～6 minutes, add additive, macromolecular material stirs 30～50 minutes, then packs, and storage temperature is-20 DEG C～-40 DEG C.
Embodiment two, cement mortar waterproofing agent, its composition in parts by mass, specifically has: additive 30 parts, macromolecular material 30 parts, mixing material 40 parts.
Described additive is the mixture of polycarboxylate water-reducer and accelerator, and wherein, polycarboxylate water-reducer consumption is the 0.15%～0.3% of grouting cement, and accelerator consumption is the 0.5%～2% of grouting cement, in proportion by polycarboxylate water-reducer and accelerator mixing and stirring.
Described macromolecular material is polyacrylamide.
Described mixing material is the mixture of I level flyash and silicon ash, and wherein, the volume of flyash is the 18%-of grouting cement
22%, Silica fume content is the 3%-27% of grouting cement, in proportion by I level flyash and silicon ash mixing and stirring.
During preparation, after mixing material being put in blender stirring 3～6 minutes, add additive, macromolecular material stirs 30～50 minutes, then packs, and storage temperature is-20 DEG C～-40 DEG C.
Embodiment three, cement mortar waterproofing agent, its composition in parts by mass, specifically has: additive 40 parts, macromolecular material 40 parts, mixing material 65 parts.
Described additive is the mixture of polycarboxylate water-reducer and accelerator, and wherein, polycarboxylate water-reducer consumption is the 0.15%～0.3% of grouting cement, and accelerator consumption is the 0.5%～2% of grouting cement, in proportion by polycarboxylate water-reducer and accelerator mixing and stirring.
Described macromolecular material is polyacrylamide.
Described mixing material is the mixture of I level flyash and silicon ash, and wherein, the volume of flyash is the 18%-of grouting cement
22%, Silica fume content is the 3%-27% of grouting cement, in proportion by I level flyash and silicon ash mixing and stirring.
During preparation, after mixing material being put in blender stirring 3～6 minutes, add additive, macromolecular material stirs 30～50 minutes, then packs, and storage temperature is-20 DEG C～-40 DEG C.
Embodiment four, cement mortar waterproofing agent, its composition in parts by mass, specifically has: additive 20 parts, macromolecular material 15 parts, mixing material 20 parts.
Described additive is the mixture of polycarboxylate water-reducer and accelerator, and wherein, polycarboxylate water-reducer consumption is the 0.15%～0.3% of grouting cement, and accelerator consumption is the 0.5%～2% of grouting cement, in proportion by polycarboxylate water-reducer and accelerator mixing and stirring.
Described macromolecular material is polyacrylamide.
Described mixing material is I level flyash and bentonitic mixture, and wherein, the volume of flyash is the 18%-of grouting cement
22%, bentonite volume is the 1%-3% of grouting cement, in proportion by I level flyash and silicon ash mixing and stirring.
During preparation, after mixing material being put in blender stirring 3～6 minutes, add additive, macromolecular material stirs 30～50 minutes, then packs, and storage temperature is-20 DEG C～-40 DEG C.
Embodiment five, cement mortar waterproofing agent, its composition in parts by mass, specifically has: additive 30 parts, macromolecular material 30 parts, mixing material 40 parts.
Described additive is the mixture of polycarboxylate water-reducer and accelerator, and wherein, polycarboxylate water-reducer consumption is the 0.15%～0.3% of grouting cement, and accelerator consumption is the 0.5%～2% of grouting cement, in proportion by polycarboxylate water-reducer and accelerator mixing and stirring.
Described macromolecular material is polyacrylamide.
Described mixing material is I level flyash and bentonitic mixture, and wherein, the volume of flyash is the 18%-of grouting cement
22%, bentonite volume is the 1%-3% of grouting cement, in proportion by I level flyash and bentonite mixing and stirring.
During preparation, after mixing material being put in blender stirring 3～6 minutes, add additive, macromolecular material stirs 30～50 minutes, then packs, and storage temperature is-20 DEG C～-40 DEG C.
Embodiment six, cement mortar waterproofing agent, its composition in parts by mass, specifically has: additive 40 parts, macromolecular material 40 parts, mixing material 65 parts.
Described additive is the mixture of polycarboxylate water-reducer and accelerator, and wherein, polycarboxylate water-reducer consumption is the 0.15%～0.3% of grouting cement, and accelerator consumption is the 0.5%～2% of grouting cement, in proportion by polycarboxylate water-reducer and accelerator mixing and stirring.
Described macromolecular material is polyacrylamide.
Described mixing material is I level flyash and bentonitic mixture, and wherein, the volume of flyash is the 18%-of grouting cement
22%, bentonite volume is the 1%-3% of grouting cement, in proportion by I level flyash and bentonite mixing and stirring.
During preparation, after mixing material being put in blender stirring 3～6 minutes, add additive, macromolecular material stirs 30～50 minutes, then packs, and storage temperature is-20 DEG C～-40 DEG C.
Claims (2)
1. cement mortar waterproofing agent, is characterized in that: its composition in parts by mass, specifically has: additive 20～40 parts, macromolecular material 15～40 parts, mixing material 20～65 parts；
Described additive is the mixture of polycarboxylate water-reducer and accelerator, and wherein, polycarboxylate water-reducer consumption is the 0.15%～0.3% of grouting cement, and accelerator consumption is the 0.5%～2% of grouting cement, in proportion by polycarboxylate water-reducer and accelerator mixing and stirring；
Described macromolecular material is polyacrylamide；
Described mixing material is the mixture of I level flyash and silicon ash, or I level flyash and bentonitic mixture, wherein, the volume of flyash is the 18%-22% of grouting cement, Silica fume content is the 3%-27% of grouting cement, bentonite volume is the 1%-3% of grouting cement, in proportion by grey to I level flyash and silicon or I level flyash and bentonite mixing and stirring.
2. cement mortar waterproofing agent as claimed in claim 1, it is characterized in that: during preparation, after mixing material being put in blender stirring 3～6 minutes, add additive, macromolecular material stirring 30～50 minutes, then packing, storage temperature is-20 DEG C～-40 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219932.4A CN105819730A (en) | 2016-04-11 | 2016-04-11 | Cement paste waterproofing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219932.4A CN105819730A (en) | 2016-04-11 | 2016-04-11 | Cement paste waterproofing agent |
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| Publication Number | Publication Date |
|---|---|
| CN105819730A true CN105819730A (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610219932.4A Pending CN105819730A (en) | 2016-04-11 | 2016-04-11 | Cement paste waterproofing agent |
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| CN (1) | CN105819730A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108424023A (en) * | 2018-04-19 | 2018-08-21 | 南华大学 | A kind of hydrophobic material and its preparation method and application |
| CN113461376A (en) * | 2021-07-28 | 2021-10-01 | 核工业华东建设工程集团有限公司 | Grouting slurry for reinforcing tunnel and grouting method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6942727B2 (en) * | 2003-12-30 | 2005-09-13 | Construction Research & Technology Gmbh | High early-strength fiber reinforced cementitious composition |
| CN1709821A (en) * | 2005-06-08 | 2005-12-21 | 张振秋 | Cement-base dual-liquid slip-casting material |
| CN101157529A (en) * | 2007-08-02 | 2008-04-09 | 铁道科学研究院铁道建筑研究所 | High-performance cement-based shrink-free corrosion-proof grouting agent |
| CN101519288A (en) * | 2009-04-03 | 2009-09-02 | 南京瑞迪高新技术公司 | Special additive for underwater undispersed shrinking-free grouting material |
| CN104446115A (en) * | 2014-11-18 | 2015-03-25 | 桂林华越环保科技有限公司 | Concrete synergist |
-
2016
- 2016-04-11 CN CN201610219932.4A patent/CN105819730A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6942727B2 (en) * | 2003-12-30 | 2005-09-13 | Construction Research & Technology Gmbh | High early-strength fiber reinforced cementitious composition |
| CN1709821A (en) * | 2005-06-08 | 2005-12-21 | 张振秋 | Cement-base dual-liquid slip-casting material |
| CN101157529A (en) * | 2007-08-02 | 2008-04-09 | 铁道科学研究院铁道建筑研究所 | High-performance cement-based shrink-free corrosion-proof grouting agent |
| CN101519288A (en) * | 2009-04-03 | 2009-09-02 | 南京瑞迪高新技术公司 | Special additive for underwater undispersed shrinking-free grouting material |
| CN104446115A (en) * | 2014-11-18 | 2015-03-25 | 桂林华越环保科技有限公司 | Concrete synergist |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108424023A (en) * | 2018-04-19 | 2018-08-21 | 南华大学 | A kind of hydrophobic material and its preparation method and application |
| CN113461376A (en) * | 2021-07-28 | 2021-10-01 | 核工业华东建设工程集团有限公司 | Grouting slurry for reinforcing tunnel and grouting method |
| CN113461376B (en) * | 2021-07-28 | 2023-08-15 | 核工业华东建设工程集团有限公司 | Grouting slurry and grouting method for reinforcing tunnel hole |
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Application publication date: 20160803 |